Final Exam plumbing 2

What is the water consumption requirement for toilets made since 1994?

• 3 gallons per flush

• 4 gallons per flush

• 2 gallons per flush

• 1.6 gallons or less per flush

What are the features of high-functioning, economical toilets?

• Wide passages behind the bowl and wide flush valve openings

• Narrow passages behind the bowl and narrow flush valve openings

• Small tank and narrow bowl

• Tall tank and steep bowl walls

What are the two basic types of flush mechanisms for toilets?

• Gravity-assisted and dual-flush

• Gravity-assisted and manual flush

• Gravity-assisted and pressure-assisted

• Pressure-assisted and dual-flush

What is the purpose of narrower trapways and larger flush valves in some high-end toilets?

• To maximize pressure with less water

• To minimize pressure with more water

• To maximize pressure with more water

• To minimize pressure with less water

What is the purpose of a pressure-assisted toilet?

• To increase water usage by requiring multiple flushes

• To increase water pressure in the tank

• To reduce water pressure in the tank

• To reduce water usage by eliminating multiple flushes

What is the first step to remove an old toilet?

• Unthread the coupling nut for the water supply

• Sponge out the tank

• Flush the toilet

• Turn off the water at the stop valve

What should be done to remove an old wax ring?

• Work a stiff putty knife underneath the plastic flange and start scraping

• Cut the bolts off with a hacksaw

• Use a wet/dry vac to clear any remaining water out of the tank and bowl

• Apply penetrating oil to the nut and let it sit

How should the toilet seat be attached?

• Lower the bowl onto the flange, taking care not to disturb the wax ring

• Connect the supply tube to the threaded fill valve with the coupling nut provided

• Insert the flush valve through the tank opening and tighten a spud nut over the threaded end of the valve

• Thread the plastic or brass bolts provided with the seat through the openings on the back of the rim and attach nuts

What is the purpose of a valve in a plumbing system?

• To provide lighting

• To generate electricity

• To control air conditioning

• To regulate fluid flow within the system

What is the function of a gate valve?

• To provide a visual indication of the valve position

• To prevent backflow in the system

• To control the temperature of the fluid

• To regulate fluid flow by raising and lowering a wedge-shaped disk